Closure for a container



Jan. 14, 1969 R, F, HENDmCKSON ET AL 3,421,651

CLOSURE FOR A CONTAINER Filed Feb. 12, 196B F/G Z United States Patent OU.S. Cl. 220--42 7 Claims ABSTRACT OF THE DISCLOSURE The inventiondisclosed herein provides an eiiicient structure of cap suitable for useon aerosol cans or `the like, which is especially suited for a vacuumforming operation of manufacture. The cap has provision for supportingit on the central part of an aerosol can adjacent the valve thereof thatrigidly supports the cap. The cap is provided with means to make ittamperproof. The cap is formed of an inner generally cylindrical walland an outer generally cylindrical wall concentric with the inner Wall.The outer wall and inner wall are rigidly connected together at the endsthereof remote from the open end of the cap.

It is, accordingly, an object of the invention to provide an improvedaerosol can and cap.

Another object of the invention is to provide a cap for an aerosol canwhich is eicient to use yet is suitable for manufacture by vacuumforming.

Another object of the invention is to provide a cap for an aerosol canwhich is simple in construction, economical to manufacture and simpleand efficient to use.

With the above and other objects in view, the present invention consistsof the combination and arrangement of parts hereinafter more fullydescribed, illustrated in the accompanying drawing and more particularlypointed out in the appended claims, it being understood that changes maybe made in the form, size, proportions, and minor `de- Itails ofconstruction without departing from the spirit or sacrificing any of theadvantages of the invention.

In the d-rawing:

FIG. 1 is a longitudinal cross sectional view of an aerosol can capaccording to the invention.

FIG. 2 is a.- view of the cap shown in FIG. 1 having a closure on itsend.

FIG. 3 is a broken away view of another embodiment of the inventionsimilar to FIGS. 1 and 2.

FIGS. 4, 5, 6 and 7 show other embodiments of the invention similar insome ways to the views shown in FIGS. 1 and 2.

Now with more particular reference to the drawings, the cap 10 shown inFIGS. l and 2 has an outer cylindrical member 12 with a first end 13 anda second end 14. The inner cylindrical member 15 has a first end 16 anda second end 17. The disk-like end closure member 18 is supported on theannular member 19 which forms a closure with the outer and innercylindrical members and is integrally attached to them. The second endof the cylindrical member 15 may be curled outwardly at 20 and thesecond end of the outer cylindrical member may be curled inwardly at 21.Thus, the inner cylindrical member can, at its second end, frictionallyengage a rim 22 of an aerosol valve cup 23 and the outer cylindricalmember 12 can frictionally engage an overhanging part of the can breast,such as a shoulder 24 on the breast 25 of the aerosol can.

The can cap shown in FIG. 3 has the outer cylindrical member 112 and theinner cylindrical member 115 similar to that shown in FIG. 1, however,the outer cylindrical member 112 has a groove 127 adjacent at its ii-rstend 113 ice and the closure 118 is formed downwardly into the groove127. Otherwise, the cap shown in FIG. 3 is similar to the cap shown inFIGS. l and 2 wherein the inner cylindrical member terminates above aplane passing through the second end of the outer cylindrical member112.

In the embodiment of the invention shown in FIG. 4, the outercylindrical member 212 is attached to the inner cylindrical member 215by means of an annular closure 219 and is integrally att-ached thereto.The closure 218 has its ends turned inwardly then downwardly at 230 andit frictionally engages the inner periphery of the inner cylindricalmember 215.

In the embodiment of the invention shown in FIG. 5, the outercylindrical member 312 is integrally attached to the inner generallycylindrical member 315 by means of the annular member 319. It will benoted that the cylindrical member 315 is actually formed specifically toa frustoconical shape. The groove 327 is formed in the second end 316-of the inner cylindrical member and the disk-like closure 318 has itsouter periphery disposed in the groove 319. The inner cylindrical memberhas its second end 317 curled outw-ard at 320, as shown, so that it mayfrictionally engage a portion of an aerosol cap above the outerperiphery of the breast thereof.

In the embodiment of the invention shown in FIG. 6, the outercylindrical member 412 is integrally attached to the inner cylindricalmember 415 by means of the annular member 419. The second end 417 isturned inwardly at 420 to underlie the rim 422 of the aerosol can valvecup indicated. The outer rim 412 extends downwardly and may engage theouter periphery of the can in the same manner as the other embodimentsof the invention.

In the embodiment of the invention shown in FIG. 7, the cap 512 has anouter cylindrical member 513 having its lower second end 514 steppedoutwardly at 515 to overlie the rim 526 of the aerosol can 528. Theouter cylindrical rim 427 is adapted to frictionally engage the outerperiphery of the can.

The foregoing speciication sets forth the invention in its preferredpractical forms but the structure shown is capable of modificationwithin a range of equivalents without departing from the invention whichis to be understood is broadly novel as is commensurate with theappended claims.

The embodiments of the invention in which an exclusive property orprivilege is claimed are delined as follows:

1. A cap for use on an aerosol can comprising an outer generallycylindrical shell having a irst end and a second end,

an inner generally cylindrical shell having a first and a second end,said inner shell being disposed concentrioto said outer shell,

an annular closure member integrally attached to said inner memberandintegrally attached to said outer cylindrical member and forming aclosure at one end. of said cap between said outer and said inner shell,said second end of said outer closure member being curled inwardly andbeing adapted to underlie an overhanging portion of the breast of anaerosol can, said second end of said inner cylindrical memberterminating inward of a plane passing through the said second end ofsaid outer cylindrical member, said second end of said inner cylindricalmember being adapted to frictionally engage a central part of an aerosolcan adjacent the valve thereof and above the breast thereof.

2. The cap recited in claim 1 wherein said second end of said innercylindrical member is curled outward.

3. The cap recited in claim 1 wherein said second end of said innercylindrical member is disposed inward and adapted to underlie a rim ofan aerosol valve cup above the breast of the can thereof.

4. The cap recited in claim 3 in combination with an aerosol can havinga breast, a rim above said breast, and an enlarged part outward of saidrim,

said inwardly disposed part of said second end of said secondcylindrical member underlying said rim above said breast,

said second end of said first cylindrical member frictionally engagingsaid aerosol can.

5. The cap recited in claim 3 wherein said cap has a peripheral groovein said rst cylindrical member in said rst end thereof,

and a disk-like closure member is supported on said annular closuremember,

the outer periphery of said disklike closure member being curled oversaid second end of said iirst cylindrical member and into said groove.

6, The cap recited in claim 3 wherein a groove is formed in said firstend of said inner generally cylindrical member,

and a circular disk-shaped closure member has its outer peripherydisposed in said groove.

References Cited UNITED STATES PATENTS 2,973,114 2/ 1961 Patton 2210-423,149,746 9/ 1964 Edelstone et al. 220-42 XR 3,235,132 2/1966 Patton etal. 222-182 MARTHA L. RICE, Primary Examiner.

GEORGE T. HALL, Assistant Examiner.

U .S. Cl. X.R.

